Generation of positrons via pair-creation from Compton scattered gamma-rays

K. Dobashi, T. Hirose, T. Kumita, Y. Kurihara, T. Muto, T. Omori, T. Okugi, K. Sugiyama, J. Urakawa

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)


An important role of positron (e+) polarization in future linear colliders is discussed in terms of effective polarization, which is closely related to the clear observation of interesting reaction processes in e-e+ collisions. In order to verify our proposed method, in which highly polarized e+ can be generated through Compton scattering of laser light off a relativistic electron (e-) beam, we performed an experiment to prove the principle and observed e+ productions for the first time. It was found that the production rates of e+ are not only consistent with those of e- and γ-ray but also in good agreement with numerical estimations.

Original languageEnglish
Pages (from-to)169-177
Number of pages9
JournalNuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Issue number2-3
Publication statusPublished - 1999 Nov 21


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